[rlmorel]

"...In recent months the U.S. has been under pressure from lawmakers and trade groups to crack down on goods coming from China. China has responded with allegations of U.S. protectionism.

The potential ban could be a big blow to the U.S. chicken industry, which has been struggling with high grain prices and a price-depressing oversupply of chicken. Exports had been a bright spot for the industry..."

Gee. Which grain prices? Corn? The grain being used for Ethanol production, the stupid, useless enterprise which isn't supposed to increase the cost of any food because "we don't eat that kind of corn"?

[Wonder Warthog]

"Gee. Which grain prices? Corn? The grain being used for Ethanol production, the stupid, useless enterprise which isn't supposed to increase the cost of any food because "we don't eat that kind of corn"?"

I doubt that "high grain prices" have much to do with it. See the second phrase in your sentence for the real reason..."a price-depressing oversupply of chicken".